Aux 3.5mm to car stereo problem

[Lommelun]

Hi! 

Im using aux 3.5mm cable from my z2 to car stereo, it works fine on low volume, but when i turn it up i get a weird squeeky noise in the background which ruins the music. It worked fine on my xperia z and my friends z1. I also tried to use different cables. Any idea whats up? 

[Lommelun]

bumps

[dandy63]

Hi, do you adjust the volume thru the Z2 or your car stereo.....

[owensda]

I can't get any sound whatsoever on my z3 when I connect the music just carries on player out the Z3 speakers